Legacy Knowledge Base
Published Jul. 2, 2025

How are Unique Visitors calculated and identified?

Written By

Rita Schaff

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Issue

  • We would like to know how the Unique Visitors are calculated and what the factors are that identify a unique visitor.
    Sites_-_Unique_Visitors.png

Environment

  • Analytics Cloud

Resolution

  • As for unique visitors, we track known users based on a combination of factors including that user's individual ID and cookies.
  • So for example, if a user is visiting the site on two different devices, as long as they have previously visited the site on each device and been recorded by Analytics Cloud as a known user, they will be recorded as one unique visitor across both devices for the specified time period (ie assuming that both visits take place within the specified time period that is being analyzed).
  • The exception would be if the user has logged in on both devices but subsequently logged out and cleared their cookies/ cache etc. In that case, they would not be logged as a known user when they visit the site again and would be recorded as two unique visits. Of course, that would be resolved as soon as they log in again on both devices.

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